According to wikipedia is a Soviet/Russian animated series produced by Soyuzmultfilm. The series debuted in 1969 and became popular in the Soviet Union and Eastern Bloc countries. The latest episode was produced in 2006.
The series follows the comical adventures of a mischievous yet artistic Wolf (Волк), trying to catch—and presumably eat Hare (Заяц). It features additional characters that usually either help the hare or interfere with the wolf’s plans. The original film language is Russian, but very little speech is used, usually interjections or at most several sentences per episode. The series’ most common line is the titular “Nu, pogodi!”, recited by the wolf when his plans fail. It also includes many grunts, laughs and songs.